Windows NT 3.1 build 239

(Redirected from Windows NT 3.1 build 239.1)
1.239
Build of Windows NT 3.1
Screenshot
OS familyWindows NT
Version number3.0
Build number239
Architecturex86, MIPS
Compiled on1991-12-21
About dialog
WindowsNT3.1-1.0.239-About.png
TCB.png TCBGallery.png

Windows NT 3.1 build 239 is the December 1991 build of Windows NT 3.1. Like in earlier builds, Sound Blaster configuration is hardcoded for I/O port 0x260 and IRQ 7.

New features and changes[edit | edit source]

The color palette has been changed back to the one used by Windows 3.1 and build 196 as opposed to the older Windows 3.0 palette used by the October build.

The Video 7 VGA driver now also supports 1024×768 at 16 colors as opposed to only 800×600.

MIPS compile[edit | edit source]

This is the earliest available build of NT for the MIPS R4000 architecture. Due to its earliness, a custom ARC firmware ROM image must be used, otherwise the installer and boot loader will crash or exit. The build is very unstable in QEMU and will hang during boot. In MAME, it will install properly, but the boot entry is incomplete and needs to be fixed in the ARC firmware setup after installation.

Earlier compiles[edit | edit source]

TEXTPERF.XLS in the leaked Windows NT 3.5 build 782 source code shows that as many as 27 candidate builds have been compiled for this release.

File differences[edit | edit source]

The following files have been introduced or removed compared to the October 1991 build:

Added files
Name Description Version
256COLOR.BMP
ARCADE.BMP
ARCHES.BMP
ARGYLE.BMP
BOWSER.SYS
CARS.BMP
CASTLE.BMP
CHITZ.BMP
CPUTHERM.EXE
DLGEDIT.HLP
EDITHLP.HLP
EGYPT.BMP
FD845.SYS
FLOCK.BMP
HONEY.BMP
IMAGEDIT.HLP
LEAVES.BMP
MARBLE.BMP
NTLANMAN.DLL
PORTTOOL.EXE
PSTAT.EXE
REDBRICK.BMP
RIVETS.BMP
SLASH.BMP
SPOTS.BMP
SQUARES.BMP
SSBEZIER.SCR
STEEL.BMP
TARTAN.BMP
THATCH.BMP
WIN32API.DAT
WINLOGO.BMP
WINMETA.H
WINPERF.EXE
WINVER.H
ZIGZAG.BMP
ZOOMIN.EXE
Removed files
Name Description Version
CCONSOLE.DLL
CCONSRV.DLL
HDR.EXE
WIN32KEY.DAT
WINPORT.DLL
WINSHAPE.EXE
ZHELP.DLL

Gallery[edit | edit source]

PC/AT compatible version[edit | edit source]

MIPS R4x00 Jazz compatible version[edit | edit source]

Miscellaneous[edit | edit source]